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On most currently available computers there is nothing that checks memory for errors. However some more expensive models use RAM modules having either a parity bit or ECC bits. Parity will detect a single bit error. ECC will correct a single bit error (the next time the location is accessed) and detect a double bit error.
The BIOS ROM might be checked by a precalculated checksum or CRC code value of the ROM image. But I don't know if this is implemented on current computers or not. The helpfulness of this is questionable as the BIOS itself would have to recalulate this checksum or CRC value on itself, if the ROM was corrupted it is possible this routine is corrupted and won't properly detect and report the error.
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∙ 8y ago
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What are the functions of Motherboard?
jumper that set the cpu speed or reset the BIOS memory
What are four types of system resources?
CPU, ROM BIOS, RAM, Operating System
Does rom a primary storage?
Yes. ROM (Read Only Memory) is a primary memory. BIOS is a Read Only Memory and is directly accessed by the cpu just like RAM (Random Access Memory). So it is a primary storage.
What is the temperature of the CPU?
Download cpu-z or it might have it somewhere in the bios.
When troubleshooting computer why BIOS setup is necessary?
Looking in the BIOS setup is often a necessary part of troubleshooting a computer, since the information in there can be wrong. For instance, if the system doesn't recognize a hard drive, then it is possible that it is not enabled in the CMOS settings. At other times, the CPU or the memory could be clocked too fast and leading to crashes and errors.
What are the relationship between cmos and bios?
The CPU depends on the BIOS to fetch instructions for processing and then to present it to the user after it is processed, The BIOS also depends on the CPU to process the information it fetches and sends back.
What do you need to replace the BIOS?
BIOS of what component? your graphics card will have a BIOS, the CPU will have a BIOS. If there is nothing wrong with yours don't bother replacing it.
What are some essential points of failure for no post?
A failure of a computer to not post but to power on might be a bad BIOS chip, a bad CPU or perhaps faulty Memory or controller chips. Almost always a hardware failure. It could also be caused by a bad BIOS update which has corrupted the bios.
When evaluating CPU memory do you check the cache memory?
The only memory on the CPU is cache memory and it is only dependent on the CPU type and generation you use.
What happens after the CPU activates the bios?
The POST runs
What are the two key chips or chipsets on a motherboard?
Outside of the CPU and the memory, the two main chips on the motherboard are the Northbridge and the Southbridge. Traditionally, the Northbridge contained the AGP controller, the memory controller, and the bus to the CPU. It is also connected to the Southbridge which is connected to the peripheral bus, the BIOS, the front panel, the keyboard, sound, and the hard drive controller. So functionally speaking, the Northbridge is closest to the CPU and the memory, and the Southbridge is closest to the user.
If you upgrade your CPU will you have to upgrade your bios?
Most motherboards only support a specific subset of CPU's. If you change your CPU you MAY need to replace the motherboard... but if you do that it will include the appropriate BIOS. You may also need to re-install the Operating System.
